Staybolt structure



J. R. FLANN ERY, B. E. D. STAFFORD AND E. I. DODDS.

STAYBOLT' STRUCTURE. APPLICATION FILED SEPT. I2, 1919.

1,364,100. Patented Jan. 4, 1921,

5 aZdMIJVI ENTOKS 'aw- M 14 1101722 yr UNITED STATES PATENT OFFICE.

JOHN ROGERS FLANNERY, BENJAMIN E. D. STAFFORD, AND ETHAN I. DODDS, 0FPITTSBURGH, PENNSYLVANIA, ASSIGNORS TO FLANNERY BOLT COMPANY, OF

PITTSBURGH, PENNSYLVANIA.

STAYBOLT STRUCTURE.

Specification of Letters Patent.

Patented Jan. 4, 1921.

T 0 all whom it may concern:

Be it known that we, JOHN ROGERS FLAN- NERY, BENJAMIN E. D. STAFFORD,and ETHAN I. Donns, citizens of the United States, and residents ofPittsbur h, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improvements in staybolt Structures; andwe do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in staybolt structures forboilers,one object of the invention being to provide simple andefiicient means in a universally movably mounted bearing sleeve ormember for the head of a staybolt, whereby staybolts having relativelysmall heads may be mounted in said sleeve or bearing member.

IVith this and other objects in view, the invention consists in certainnovel features ofconstruction and combinations of parts as hereinafterset forth and pointed out in the claims.

In the accompanying drawings: Figure 1 is a sectional view of a stayboltstructure showing an embodiment of our invention, and Figs. 2 and 3 aresimilar views showing different ways of mounting the bearing sleeve.

1 represents a boiler sheet having an opening 2,-the major portion ofthe wall of which is rounded to form a seat 3 for a hearing sleeve 4.The outer or upper portion 5 of this sleeve may be made cylindrical andits lower or inner end portion is made with a rounded exterior face 6 toengage the rounded seat 3 in the opening in the boiler sheet. The sleeve4 is thus so mounted in the boiler sheet that it is universally movableor adjustable to insure proper alinement of the staybolt (which isinstalled as hereinafter described) with its points of connection withthe respective boiler sheets, and when the sleeve shall have beenproperly adjusted, it will be united to the boiler sheet by means of aweld 4.

The bearing sleeve 4 is provided in proximity to its lower or inner endwith an internal annular shoulder 7 disposed at right angles to thelongitudinal axis of the sleeve made slightly flaring.

A bearing ring 9 is located within the slightly tapering inner portionof the sleeve and rests freely upon the annular shoulder 7, theperipheral portion of said ring engaging the slightly tapering wall 8.The ring 9 is made with an interior curved seat 10, for the rounded head11 at the outer end of a staybolt 12, the inner end of which latter maybe secured to the inner boiler sheet 13 in any suitable manner. Thebearing ring 9 may be beveled interiorly as at 9 in line with the wallof the flaring opening 15 at the lower or inner end of the bearingsleeve 4.

The bearing ring 9 inserted into the bearing sleeve 1 permits the use ofstaybolts having heads smaller than the average sized heads of boilerstaybolts and it will be understood that bearing rings having seats ofdifferent dimensions may be provided so that the sleeve may be adaptedto the size of the particular bolt heads which it may be desired toemploy.

The cylindrical outer end portion 5 of the sleeve 1 may be threadedinteriorly to receive a threaded hollow plug or closure 14 havin anangular portion 15 to receive a wrench Between the inner end of the plugor closure 14' and a shoulder 16 in the sleeve, a gasket 17 is disposed.

Instead of rounding the wall of the opening in the boiler sheetthroughout the major portion of the thickness of the sheet as shown inFig. 1, to provide a seat for the bearing sleeve,-the boiler sheet maybe provided with an opening having its wall flaring approximately fromthe outer face of the sheet to the inner face thereof, as indicated at18, Fig. 2, and at the outer smaller end of said opening, a shortbeveled seat 19 may be provided and on which the lower or inner roundedend of the bearing sleeve has a universally movable mounting. When thebearing sleeve shall have been properly adjusted, it will be united tothe boiler sheet by means of a Weld 21.

In the construction shown in Fig. 3, the boiler sheet is made with anopening 22 hav- 1ng uniform diameter throughout the thickness of thesheet and the bearing sleeve has a universally movable mounting on theboiler sheet at the outer end of said opening. WVhen properly adjusted,the Sleeve will be united to the boiler sheet by means of a weld 28.

In Figs. 1 and 2 the bolt head is shown as having a slot 24 to receive ascrew driver, while in Fig. 3, a partly spherical bolt head 25 is shownprovided with an angular portion 26 to receive a Wrench.

Having fully described our invention what we claim as new and desire tosecure" sleeve, a ring located within said sleeve and seated on saidannular shoulder, said ring occupying space between the bolt head andthe inner wall of the sleeve and said ring 7 having a seat therein forthe bolt head, and a weld uniting said sleeve to the boiler sheet 'and aseat -for a bearing member, of a bearing member having initialuniversally .mov-

- able mounting .on-xsaidv seat,.a. weld'uniting said bearing memberetotheboiler sheet, said bearing member having an internal flange forming aflat shoulder at right angles to the inner wall of the bearing memberand in proximity to the inner end of .the latter, a ring seated on saidfiat shoulder, said ring having a rounded seat therein, and a staybolthaving a rounded head engaging the rounded seat in said ring. v p v I11testimony whereof we havesigned this specification in the presence oftwo subscribing witnesses. JOHN ROGERS'FIJAN-NERY. BENJAMIN E. 'D.STAFFORD. ETHAN I. DODD'S. 1

Witnesses:

JAMES R. HORAN, EDWIN S, Rron,

